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1 | Version 0.92 (2002-03-29) | ||
2 | ========== | ||
3 | * Minor cleanup. Ran Lindent on the sources. | ||
4 | |||
5 | Version 0.92 (2002-03-27) | ||
6 | ========== | ||
7 | * Fixed module makefile problem. It was not compiling all the correct | ||
8 | source files! | ||
9 | * Removed duplicated function definition | ||
10 | * Fixed potential null pointer dereference when reporting an error | ||
11 | |||
12 | Version 0.91 (2002-03-26) | ||
13 | ========== | ||
14 | * Oy! Fixed stupid bug that would cause an unresolved symbol error. | ||
15 | Thanks to Laszlo Boszormenyi for pointing this out to me. | ||
16 | |||
17 | Version 0.9 (2002-03-14) | ||
18 | ========== | ||
19 | * Added Sergey S. Kostyliov's patch to eliminate memcpy() overhead | ||
20 | from b+tree operations. Changes the befs_read_datastream() interface. | ||
21 | |||
22 | * Segregated the functions that interface directly with the linux vfs | ||
23 | interface into their own file called linuxvfs.c. [WD] | ||
24 | |||
25 | Version 0.64 (2002-02-07) | ||
26 | ========== | ||
27 | * Did the string comparision really right this time (btree.c) [WD] | ||
28 | |||
29 | * Fixed up some places where I assumed that a long int could hold | ||
30 | a pointer value. (btree.c) [WD] | ||
31 | |||
32 | * Andrew Farnham <andrewfarnham@uq.net.au> pointed out that the module | ||
33 | wouldn't work on older (<2.4.10) kernels due to an unresolved symbol. | ||
34 | This is bad, since 2.4.9 is still the current RedHat kernel. I added | ||
35 | a workaround for this problem (compatibility.h) [WD] | ||
36 | |||
37 | * Sergey S. Kostyliov made befs_find_key() use a binary search to find | ||
38 | keys within btree nodes, rather than the linear search we were using | ||
39 | before. (btree.c) [Sergey S. Kostyliov <rathamahata@php4.ru>] | ||
40 | |||
41 | * Made a debian package of the source for use with kernel-package. [WD] | ||
42 | |||
43 | |||
44 | Version 0.63 (2002-01-31) | ||
45 | ========== | ||
46 | * Fixed bug in befs_find_brun_indirect() that would result in the wrong | ||
47 | block being read. It was introduced when adding byteswapping in | ||
48 | 0.61. (datastream.c) [WD] | ||
49 | |||
50 | * Fixed a longstanding bug in befs_find_key() that would result in it | ||
51 | finding the first key that is a substring of the string it is searching | ||
52 | for. For example, this would cause files in the same directory with | ||
53 | names like file1 and file2 to mysteriously be duplicates of each other | ||
54 | (because they have the same inode number). Many thanks to Pavel Roskin | ||
55 | for reporting this serious bug!!! | ||
56 | (btree.c) [WD] | ||
57 | |||
58 | * Added support for long symlinks, after Axel Dorfler explained up how | ||
59 | they work. I had forgotten all about them. (inode.c, symlink.c) [WD] | ||
60 | |||
61 | * Documentation improvements in source. [WD] | ||
62 | |||
63 | * Makefile fix for independent module when CONFIG_MODVERSION is set in | ||
64 | kernel config [Pavel Roskin <proski@gnu.org>] | ||
65 | |||
66 | * Compile warning fix for namei.c. [Sergey S. Kostyliov <rathamahata@php4.ru>] | ||
67 | |||
68 | |||
69 | Version 0.62 | ||
70 | ========== | ||
71 | * Fixed makefile for module install [WD] | ||
72 | |||
73 | |||
74 | Version 0.61 (2002-01-20) | ||
75 | ========== | ||
76 | * Made functions in endian.h to do the correct byteswapping, no matter | ||
77 | the arch. [WD] | ||
78 | |||
79 | * Abbandoned silly checks for a NULL superblock pointer in debug.c. [WD] | ||
80 | |||
81 | * Misc code cleanups. Also cleanup of this changelog file. [WD] | ||
82 | |||
83 | * Added byteswapping to all metadata reads from disk. | ||
84 | Uses the functions from endian.h [WD] | ||
85 | |||
86 | * Remove the typedef of struct super_block to vfs_sb, as it offended | ||
87 | certain peoples' aesthetic sense. [WD] | ||
88 | |||
89 | * Ditto with the befs_read_block() interface. [WD] | ||
90 | |||
91 | |||
92 | Version 0.6 (2001-12-15) | ||
93 | ========== | ||
94 | * Cleanup of NLS functions (util.c) [WD] | ||
95 | |||
96 | * Make directory lookup/read use the NLS if an iocharset is provided. [WD] | ||
97 | |||
98 | * Fixed stupid bug where specifying the uid or gid mount options as '0' | ||
99 | would result in the filesystem using the on-disk uid and gid. [WD] | ||
100 | |||
101 | * Added mount option to control debug printing. | ||
102 | The option is, simply enough, 'debug'. | ||
103 | (super.c, debug.c) [WD] | ||
104 | |||
105 | * Removed notion of btree handle from btree.c. It was unnecessary, as the | ||
106 | linux VFS doesn't allow us to keep any state between calls. Updated | ||
107 | dir.c, namei.c befs_fs.h to account for it. [WD] | ||
108 | |||
109 | * Improved handleing of overflow nodes when listing directories. | ||
110 | Now works for overflow nodes hanging off of nodes other than the root | ||
111 | node. This is the cleaner solution to Brent Miszalaski's problem. [WD] | ||
112 | |||
113 | * Added new debug/warning/error print functions in debug.c. | ||
114 | More flexible. Will soon be controllable at mount time | ||
115 | (see TODO). [WD] | ||
116 | |||
117 | * Rewrote datastream positon lookups. | ||
118 | (datastream.c) [WD] | ||
119 | |||
120 | * Moved the TODO list to its own file. | ||
121 | |||
122 | |||
123 | Version 0.50 (2001-11-13) | ||
124 | ========== | ||
125 | * Added workaround for mis-understanding of the nature of the b+trees used | ||
126 | in directories. A cleaner solution will come after I've thought about it | ||
127 | for a while. Thanks to Brent Miszalaski for finding and reporting this bug. | ||
128 | (btree.c) [WD] | ||
129 | |||
130 | * Minor cleanups | ||
131 | |||
132 | * Added test for "impossible" condition of empty internal nodes in | ||
133 | seekleaf() in btree.c [WD] | ||
134 | |||
135 | * Implemented the abstracted read_block() in io.c [WD] | ||
136 | |||
137 | * Cleaned up the inode validation in inode.c [WD] | ||
138 | |||
139 | * Anton Altaparmakov figured out (by asking Linus :) ) what was causing the | ||
140 | hanging disk io problem. It turns out you need to have the sync_pages | ||
141 | callback defined in your address_space_ops, even if it just uses the | ||
142 | default linux-supplied implementation. Fixed. Works now. | ||
143 | (file.c) [WD] | ||
144 | |||
145 | * Anton Altaparmakov and Christoph Hellwig alerted me to the fact that | ||
146 | filesystem code should be using GFP_NOFS instead of GFP_KERNEL as the | ||
147 | priority parameter to kmalloc(). Fixed. | ||
148 | (datastream.c, btree.c super.c inode.c) [WD] | ||
149 | |||
150 | * Anton also told me that the blocksize is not allowed to be larger than | ||
151 | the page size in linux, which is 4k i386. Oops. Added a test for | ||
152 | (blocksize > PAGE_SIZE), and refuse to mount in that case. What this | ||
153 | practicaly means is that 8k blocksize volumes won't work without a major | ||
154 | restructuring of the driver (or an alpha or other 64bit hardware). [WD] | ||
155 | |||
156 | * Cleaned up the befs_count_blocks() function. Much smarter now. | ||
157 | And somewhat smaller too. [WD] | ||
158 | |||
159 | * Made inode allocations use a slab cache | ||
160 | (super.c inode.c) [WD] | ||
161 | |||
162 | * Moved the freeing of the private inode section from put_inode() to | ||
163 | clear_inode(). This fixes a potential free twice type bug. Put_inode() | ||
164 | can be called multiple times for each inode struct. [WD] | ||
165 | |||
166 | * Converted all non vfs-callback functions to use befs_sb_info as the | ||
167 | superblock type, rather than struct super_block. This is for | ||
168 | portablity. [WD] | ||
169 | |||
170 | * Fixed a couple of compile warnings due to use of malloc.h, when slab.h | ||
171 | is the new way. (inode.c, super.c) [WD] | ||
172 | |||
173 | * Fixed erronous includes of linux/befs_fs_i.h and linux/befs_fs_sb.h | ||
174 | in inode.c [WD] | ||
175 | |||
176 | Version 0.45 (2001-10-29) | ||
177 | ========== | ||
178 | * Added functions to get the private superblock and inode structures from | ||
179 | their enclosing public structures. Switched all references to the | ||
180 | private portions to use them. (many files) [WD] | ||
181 | |||
182 | * Made read_super and read_inode allocate the private portions of those | ||
183 | structures into the generic pointer fields of the public structures | ||
184 | with kmalloc(). put_super and put_inode free them. This allows us not | ||
185 | to have to touch the definitions of the public structures in | ||
186 | include/linux/fs.h. Also, befs_inode_info is huge (becuase of the | ||
187 | symlink string). (super.c, inode.c, befs_fs.h) [WD] | ||
188 | |||
189 | * Fixed a thinko that was corrupting file reads after the first block_run | ||
190 | is done being read. (datastream.c) [WD] | ||
191 | |||
192 | * Removed fsync() hooks, since a read-only filesystem doesn't need them. | ||
193 | [Christoph Hellwig]. | ||
194 | |||
195 | * Fixed befs_readlink() (symlink.c) [Christoph Hellwig]. | ||
196 | |||
197 | * Removed all the Read-Write stuff. I'll redo it when it is time to add | ||
198 | write support (various files) [WD]. | ||
199 | |||
200 | * Removed prototypes for functions who's definitions have been removed | ||
201 | (befs_fs.h) [WD]. | ||
202 | |||
203 | |||
204 | Version 0.4 (2001-10-28) | ||
205 | ========== | ||
206 | * Made it an option to use the old non-pagecache befs_file_read() for | ||
207 | testing purposes. (fs/Config.in) | ||
208 | |||
209 | * Fixed unused variable warnings when compiling without debugging. | ||
210 | |||
211 | * Fixed a bug where the inode and super_block didn't get their blockbits | ||
212 | fields set (inode.c and super.c). | ||
213 | |||
214 | * Release patch version 11. AKA befs-driver version 0.4. | ||
215 | |||
216 | * Thats right. New versioning scheme. | ||
217 | I've done some serious testing on it now (on my box anyhow), and it | ||
218 | seems stable and not outragously slow. Existing features are more-or-less | ||
219 | correct (see TODO list). But it isn't 1.0 yet. I think 0.4 gives me some | ||
220 | headroom before the big 1.0. | ||
221 | |||
222 | |||
223 | 2001-10-26 | ||
224 | ========== | ||
225 | * Fixed date format in this file. Was I smoking crack? | ||
226 | |||
227 | * Removed old datastream code from file.c, since it is nolonger used. | ||
228 | |||
229 | * Generic_read_file() is now used to read regular file data. | ||
230 | It doesn't chew up the buffer cache (it does page io instead), and seems | ||
231 | to be about as fast (even though it has to look up each file block | ||
232 | indivdualy). And it knows about doing readahead, which is a major plus. | ||
233 | So it does i/o in much larger chunks. It is the correct linux way. It | ||
234 | uses befs_get_block() by way of befs_readpage() to find the disk offsets | ||
235 | of blocks, which in turn calls befs_fpos2brun() in datastream.c to do | ||
236 | the hard work of finding the disk block number. | ||
237 | |||
238 | * Changed method of checking for a dirty filesystem in befs_read_super | ||
239 | (super.c). Now we check to see if log_start and log_end differ. If so, | ||
240 | the journal needs to be replayed, and the filesystem cannot be mounted. | ||
241 | |||
242 | * Fixed an extra instance of MOD_DEC_USE_COUNT in super.c | ||
243 | |||
244 | * Fixed a problem with reading the superblock on devices with large sector | ||
245 | sizes (such as cdroms) on linux 2.4.10 and up. | ||
246 | |||
247 | 2001-10-24 | ||
248 | ========== | ||
249 | * Fix nasty bug in converting block numbers to struct befs_inode_addr. | ||
250 | Subtle, because the old version was only sometimes wrong. | ||
251 | Probably responsible for lots of problems. (inode.c) | ||
252 | |||
253 | * Fix bug with reading an empty directory. (btree.c and dir.c) | ||
254 | |||
255 | * This one looks good. Release patch version 10 | ||
256 | |||
257 | 2001-10-23 | ||
258 | ========== | ||
259 | * Added btree searching function. | ||
260 | |||
261 | * Use befs_btree_find in befs_lookup (namei.c) | ||
262 | |||
263 | * Additional comments in btree.c | ||
264 | |||
265 | 2001-10-22 | ||
266 | ========== | ||
267 | * Added B+tree reading functions (in btree.c). | ||
268 | Made befs_readdir() use them them instead of the cruft in index.c. | ||
269 | |||
270 | 2001-09-11 | ||
271 | ========== | ||
272 | * Converted befs_read_file() to use the new datastream code. | ||
273 | |||
274 | * Finally updated the README file. | ||
275 | |||
276 | * Added many comments. | ||
277 | |||
278 | * Posted version 6 | ||
279 | |||
280 | * Removed byte-order conversion code. | ||
281 | I have no intention of supporting it, and it was very ugly. | ||
282 | Flow control with #ifdef (ugh). Maybe I'll redo it once | ||
283 | native byteorder works 100%. | ||
284 | |||
285 | 2001-09-10 | ||
286 | ========== | ||
287 | * Finished implementing read_datastream() | ||
288 | |||
289 | * made befs_read_brun() more general | ||
290 | Supports an offset to start at and a max bytes to read | ||
291 | Added a wrapper function to give the old call | ||
292 | |||
293 | 2001-09-30 | ||
294 | ========== | ||
295 | * Discovered that the datastream handleing code in file.c is quite deficient | ||
296 | in several respects. For one thing, it doesn't deal with indirect blocks | ||
297 | |||
298 | * Rewrote datastream handleing. | ||
299 | |||
300 | * Created io.c, for io related functions. | ||
301 | Previously, the befs_bread() funtions lived in file.c | ||
302 | Created the befs_read_brun() function. | ||
303 | |||
304 | |||
305 | 2001-09-07 | ||
306 | ========== | ||
307 | * Made a function to actually count the number of fs blocks used by a file. | ||
308 | And helper functions. | ||
309 | (fs/befs/inode.c) | ||
310 | |||
311 | 2001-09-05 | ||
312 | ========== | ||
313 | * Fixed a misunderstanding of the inode fields. | ||
314 | This fixed the problmem with wrong file sizes from du and others. | ||
315 | The i_blocks field of the inode struct is not the number of blocks for the | ||
316 | inode, it is the number of blocks for the file. Also, i_blksize is not | ||
317 | necessarily the size of the inode, although in practice it works out. | ||
318 | Changed to blocksize of filesystem. | ||
319 | (fs/befs/inode.c) | ||
320 | |||
321 | * Permanently removed code that had been provisionally ifdefed out of befs_fs.h | ||
322 | |||
323 | * Since we don't support access time, make that field zero, instead of | ||
324 | copying m_time. | ||
325 | (fs/befs/inode.c) | ||
326 | |||
327 | * Added sanity check for inode reading | ||
328 | Make sure inode we got was the one we asked for. | ||
329 | (fs/befs/inode.c) | ||
330 | |||
331 | * Code cleanup | ||
332 | Local pointers to commonly used structures in inode.c. | ||
333 | Got rid of abominations befs_iaddr2inode() and befs_inode2ino(). | ||
334 | Replaced with single function iaddr2blockno(). | ||
335 | (fs/befs/super.c) (fs/befs/inode.c) | ||
336 | |||
337 | 2001-09-01 | ||
338 | ========== | ||
339 | * Fixed the problem with statfs where it would always claim the disk was | ||
340 | half full, due to improper understanding of the statfs fields. | ||
341 | (fs/befs/super.c) | ||
342 | |||
343 | * Posted verion 4 of the patch | ||
344 | |||
345 | 2001-09-01 | ||
346 | ========== | ||
347 | * Changed the macros in befs_fs.h to inline functions. | ||
348 | More readable. Typesafe. Better | ||
349 | (include/linux/befs_fs.h) | ||
350 | |||
351 | * Moved type definitions from befs_fs.h to a new file, befs_fs_types.h | ||
352 | Because befs_fs_i.h and befs_fs_sb.h were including befs_fs.h for the | ||
353 | typedefs, and they are inlcuded in <linux/fs.h>, which has definitions | ||
354 | that I want the inline functions in befs_fs.h to be able to see. Nasty | ||
355 | circularity. | ||
356 | (include/linux/befs_fs.h) | ||
357 | |||
358 | 2001-08-30 | ||
359 | ========== | ||
360 | * Cleaned up some wording. | ||
361 | |||
362 | * Added additional consitency checks on mount | ||
363 | Check block_size agrees with block_shift | ||
364 | Check flags == BEFS_CLEAN | ||
365 | (fs/befs/super.c) | ||
366 | |||
367 | * Tell the kernel to only mount befs read-only. | ||
368 | By setting the MS_RDONLY flag in befs_read_super(). | ||
369 | Not that it was possible to write before. But now the kernel won't even try. | ||
370 | (fs/befs/super.c) | ||
371 | |||
372 | * Got rid of kernel warning on mount. | ||
373 | The kernel doesn't like it if you call set_blocksize() on a device when | ||
374 | you have some of its blocks open. Moved the second set_blocksize() to the | ||
375 | very end of befs_read_super(), after we are done with the disk superblock. | ||
376 | (fs/befs/super.c) | ||
377 | |||
378 | * Fixed wrong number of args bug in befs_dump_inode | ||
379 | (fs/befs/debug.c) | ||
380 | |||
381 | * Solved lots of type mismatches in kprint()s | ||
382 | (everwhere) | ||
383 | |||
384 | 2001-08-27 | ||
385 | ========== | ||
386 | * Cleaned up the fs/Config.in entries a bit, now slightly more descriptive. | ||
387 | |||
388 | * BeFS depends on NLS, so I made activating BeFS enable the NLS questions | ||
389 | (fs/nls/Config.in) | ||
390 | |||
391 | * Added Configure.help entries for CONFIG_BEFS_FS and CONFIG_DEBUG_BEFS | ||
392 | (Documentation/Configure.help) | ||
393 | |||
394 | 2001-08-?? | ||
395 | ========== | ||
396 | * Removed superblock locking calls in befs_read_super(). In 2.4, the VFS | ||
397 | hands us a super_block struct that is already locked. | ||
398 | |||
399 | 2001-08-13 | ||
400 | ========== | ||
401 | * Will Dyson <will_dyson@pobox.com> is now attempting to maintain this module | ||
402 | Makoto Kato <m_kato@ga2.so-net.ne.jp> is original author.Daniel Berlin | ||
403 | also did some work on it (fixing it up for the later 2.3.x kernels, IIRC). | ||
404 | |||
405 | * Fixed compile errors on 2.4.1 kernel (WD) | ||
406 | Resolve rejected patches | ||
407 | Accomodate changed NLS interface (util.h) | ||
408 | Needed to include <linux/slab.h> in most files | ||
409 | Makefile changes | ||
410 | fs/Config.in changes | ||
411 | |||
412 | * Tried to niceify the code using the ext2 fs as a guide | ||
413 | Declare befs_fs_type using the DECLARE_FSTYPE_DEV() macro | ||
414 | |||
415 | * Made it a configure option to turn on debugging (fs/Config.in) | ||
416 | |||
417 | * Compiles on 2.4.7 | ||